ARM ARM DUI 0224I manual Name Address Accessa Reset Description Level

Models: ARM DUI 0224I

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Programmer’s Reference

 

 

 

Table 4-4 Register map for system control registers

 

 

 

 

 

Name

Address

Accessa

Reset

Description

level

 

 

 

 

 

 

 

 

 

SYS_ID

0x10000000

Read only

-

System Identity. See ID Register, SYS_ID on

 

 

 

 

page 4-21.

 

 

 

 

 

SYS_SW

0x10000004

Read only

-

Bits [7:0] map to S6 (user switches)

 

 

 

 

 

SYS_LED

0x10000008

Read/Write

6

Bits [7:0] map to user LEDs (located next to S6)

 

 

 

 

 

SYS_OSC0

0x1000000C

Read/Write

2

Settings for the ICS307 programmable oscillator chip

 

 

Lockable

 

OSC0. This oscillator provides the PLLCLKEXT

 

 

 

 

and XTALCLKEXT signal sources. See Oscillator

 

 

 

 

registers, SYS_OSCx on page 4-23 and ARM926EJ-S

 

 

 

 

PXP Development Chip clocks on page 3-39.

 

 

 

 

 

SYS_OSC1

0x10000010

Read/Write

2

Settings for the ICS307 programmable oscillator chip

 

 

Lockable

 

OSC1. This oscillator provides the HCLKM1 signal

 

 

 

 

source.

 

 

 

 

 

SYS_OSC2

0x10000014

Read/Write

2

Settings for the ICS307 programmable oscillator chip

 

 

Lockable

 

OSC2. This oscillator provides the HCLKM2 signal

 

 

 

 

source.

 

 

 

 

 

SYS_OSC3

0x10000018

Read/Write

2

Settings for the ICS307 programmable oscillator chip

 

 

Lockable

 

OSC3. This oscillator provides the HCLKS signal

 

 

 

 

source.

 

 

 

 

 

SYS_OSC4

0x1000001C

Read/Write

2

Settings for the ICS307 programmable oscillator chip

 

 

Lockable

 

OSC4. This oscillator provides the CLCDCLKEXT

 

 

 

 

signal source.

 

 

 

 

 

SYS_LOCK

0x10000020

Read/Write

6

Write 0xA05F to unlock. See Lock Register,

 

 

 

 

SYS_LOCK on page 4-24.

 

 

 

 

 

SYS_100HZ

0x10000024

Read only

0

100Hz counter.

 

 

 

 

 

SYS_CFGDATA1

0x10000028

Read/Write

0

Configuration data to be applied to HDATAM1 pins

 

 

Lockable

 

at power on or when the SDC CONFIG pushbutton is

 

 

 

 

pressed.

 

 

 

 

 

SYS_CFGDATA2

0x1000002C

Read/Write

0

Configuration data to be applied to HDATAM2 pins

 

 

Lockable

 

at power on or when the SDC CONFIG pushbutton is

 

 

 

 

pressed.

 

 

 

 

 

4-18

Copyright © 2003-2010 ARM Limited. All rights reserved.

ARM DUI 0224I

Page 184
Image 184
ARM ARM DUI 0224I manual Name Address Accessa Reset Description Level